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We cannot tell if the vehicle is being driven in 4 wheel drive or not .When we are driving on a noral road the green lights for the 4 wheel drive come on on there own. we do not have a book on our gear box to see were there is a problem or not. What are your suggestions.

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Need to go to the expert technician from where u purchast

Posted on May 29, 2010

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Why do I only have rear wheel drive in my 2003 Ford Explorer . The 4x4 doesn't work at all


It is nearly impossible to drive a true four wheel drive on normal roads because the front wheels travel further than the rear wheels there is soon wind-up between the axles and one wheel must be jacked from the ground to release it so a little further can be driven.

It is for that reason such measures as an overrun clutch is used in the drive to the front or a viscous coupling to the rear, effectively making road cars into part-time 4 wheel drive vehicles. In the case of the former the front wheels will only drive noticeably when traction is lost to the rear. This makes it difficult to check whether there is drive to the front.

Raising the rear of the vehicle on level ground, using a wheeled trolley jack and then gently attempting to drive forward will soon prove whether there is drive to the front wheels.

If there really is no drive the fault is likely to lie within the transfer box or any electronic control system and more research will be needed.

Jan 23, 2016 | Ford Cars & Trucks

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2012 ram 1500 4x4 4wd not shifting out of 4 hi any ideas


4 wheel drive is only for off road driving if it's driven highway it can cost differential to have problems hope this helps

Feb 26, 2015 | Cars & Trucks

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Abs light and esp light are on in my pegoet 308


If any of four abs sensors is not working then abs light comes up and subsequently affects car's stability (esp). OBD diagnostic scanner will find out that which sensor is causing it. If all sensors are fine then most probably there is a problem with your abs/esp unit in engine bay.
PEUGEOT announced a problem with the 308 vehicles and it has been identified that the operation of the ABS/ESP braking unit may be affected by the ingress of water. Previously, recall are announced to be affected vehicles to reinforce the resistance of the ABS/ESP unit to water.

Feb 11, 2015 | 2008 Peugeot 308 1.6

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4 wheel drive troubleshooting


Check the shift linkage and shift cable, wont go into 4WD if going to fast, If vehicle has been driven for long periods of time on paved roads the driveline torque can make shifting hard, incorrect grade of lubricant, worn or damaged internal components Hope that Helps

Jan 03, 2014 | Cars & Trucks

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Abs break light 99 audi abs flashing


Anti-Lock Braking System (ABS)
Purpose Anti-lock brake systems (ABS) - generally also referred to as anti-lock
systems (ALS) - are designed to prevent the vehicle wheels from locking
as a result of the service brake being applied with too much force, especially
on slippery road surfaces.
The idea is to maintain cornering forces on braked wheels to ensure that
the vehicle or vehicle combination retains its driving stability and manoeuvrability
as far as physically possible. The available power transmission
or grip between tyres and carriageway should also be utilised as
far as possible to minimise the braking distance and maximise vehicle
deceleration.
Why ABS? Although today commercial vehicle brakes are designed to a very high
technical standard, braking on slippery roads often results in potentially
dangerous situations. During full or even partial braking on a slippery
road it may no longer be possible to fully transfer the braking force onto
the road due to the low coefficient of friction (friction coefficient (k)) between
the tyres and the carriageway. The braking force is excessive and
the wheels lock up. Locked wheels no longer provide any grip on the
road and are almost incapable of transferring any cornering forces
(steering and tracking forces). This often has dangerous consequences:
- The vehicle becomes unsteerable
- The vehicle breaks away in spite of countersteering, and starts to
swerve.
- The braking distance is significantly increased
- Tractor-trailer combinations or semitrailer trains may break away or
jackknife.
Load sensing valve influence On dry roads today's load sensing valves (ALB) alone are often capable
of preventing the wheels from locking if the vehicle is unladen; they also
help the driver to effectively grade the braking process on wet road surfaces,
but they are unable to prevent locking as such (no slip monitoring).
In addition, they are unable to counteract any overreactions on the
part of the driver, or any variances in frictional or adhesion coefficients
which may apply to different sides of the vehicle, or indeed to its different
axles (?-split road surfaces).
Benefits of ABS: Only the Anti-Lock Brake System (ABS)
- guarantees stable braking characteristics on all road surfaces.
- maintains steerability and generally reduces the braking distance
- prevents vehicle combinations from jackknifing
- reduces tyre wear.
Limits of ABS Although ABS is an effective safety device, it can not suspend the limits
defined by driving physics. Even a vehicle fitted with ABS will become
uncontrollable if driven too fast around a corner.
So ABS is not a licence for a maladjusted style of driving or failure to observe
the correct safety distance.
4
ABS Training Anti-Slip Regulation (ASR)
Anti-Slip Regulation (ASR)
Why ASR? Increasing the engine output (accelerating) on a slippery road surface
can easily lead to the maximum adhesion on one or all powered wheels
being exceeded causing them to spin, especially if the vehicle is unladen
or partially laden.
Spinning wheels when driving off or accelerating represent a safety risk
just like locked wheel do when braking.
Reasons - Wheels that spin transfer just as little cornering force as locked
wheels.
- They also no longer transfer any tractive power onto the road.
Consequences - Vehicles that do not move or get stuck.
- Vehicles that can no longer be steered, jackknife on uphill uphill
gradients, or swerve in corners.
Benefits of ASR ASR prevents the powered wheel from spinning and provides the following
benefits:
- Tractive power and cornering forces are maintained.
- Stable driving behaviour is ensured when moving off, accelerating
and negotiating corners on slippery roads.
- The indicator lamp (if installed) is used to warn the driver of slippery
road conditions.
- Tyre wear is reduced to a minimum, and the motor vehicle's drive
train protected
- The risk of accidents is further reduced.
ASR and ABS: ASR represents a worthwhile addition to an ABS-controlled braking system.
All that is required to turn ABS control into full ABS/ASR control is
an ECU with the additional ASR function and a few additional components
for controlling the differential brake and the engine. This why ASR
is only available in combination with ABS.
Even a differential lock for off-road use and ASR do not exclude but complement
each other.
Limits of ASR The traction capacity of an all-wheel driven commercial vehicle can not
be achieved by a motor vehicle with only one driving axle - not even with
optimal ASR.

abs-break-light-99-audi-abs-flashing-kqdjt5vjlt5smoo2km0zmylb-5-0.jpg

abs-break-light-99-audi-abs-flashing-kqdjt5vjlt5smoo2km0zmylb-5-2.jpg

Oct 07, 2011 | 1999 Audi A4

1 Answer

Does the 4 wheel drive shifter need to be in neutral when driven out of 4 wheel drive. when i put it in neutral and put the normal shift gear in drive the vehicle will not move. but when i put the 4wheel...


4 wheel neutral vehicle will not move that for towing or moving around --put in 2wh --4hi or if have 4low transfer case has to be in a setting to move

Aug 29, 2017 | 1998 Toyota 4Runner

2 Answers

ESP ABS LIGHT ON .AS WELL MY BREAK LIGHT FLASHING. AUDI A4 2 LITRE


i have seen this many times on VW passats which are on the same platform. You may need a new abs control unit. if the abs control unit cannot be scanned by a computer, check all fuses. if abs contol unit is needed, there is aftermarket places that can rebuild them, i recommend factory unit.

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1 Answer

Green indicator light on 1998 kia sportage


That light sounds like a differential lock or 4-wheel drive. This is usually found in 4-wheel drive and all-wheel drive vehicles. Being the light is "GREEN" and not amber or red tells me that it's not an abnormal problem.

Look around your dashboard or gearshifter for a button labeled 4x4 HI, 4x4 LO, 4x2 HI. sport/off road button, or a second, smaller shifter. Switch them around a little, and if it is a 4x4 selector, be sure when you drive on paved roads to have it set to 4x2 HI. 4x4 HI should only be used if you get stuck to help you get out (snow/mud) and 4x4 LO is only for off road driving (trail blazing/rock climbing/4-wheeling/mud bogging,etc.)

Also, check for any switches labled "DIFF LOCK" or 'AXLE LOCK". In most cars a green light is normal operations.

I hope I could help you find a solution to your problem.

Dec 04, 2008 | 2008 Kia Rio

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